JP2000059868A - Telemeter slave station device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of slave stations as a telemeter system and to enable measurement data as usual to be obtained by enabling plural measuring instruments at different installation places in the same site to be connected by a single telemeter slave station device. SOLUTION: A telemeter slave station device 1 is divided into a circuit logical part 2 composed of a control part 5, an input/output control part 6 and a line terminal 7 and an input/output part 3 composed of an input/output concentration part 8, a measurement input part 9, a monitoring input part 10 and a control output part 11. The logic part 2 is a part which controls a function as a telemeter slave station device and the input/output part 3 is a part which connects a measuring instrument in accordance with interface specifications of the measuring instrument. Then, the logical part 2 performs a data demand towards the input/output part 3 when a measurement time comes. The input/output summarized part 8 in the input/output part 3 reads data of the measurement input part 9 and the monitoring input part 10 and transmits them to the input/output control part 6 of the logical part 2. Thus, connection of the input/output part 3 and the logic part 2 is made a communication system and only the input/output part 3 is arranged nearby the measuring instrument.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telemeter slave station device in a telemeter system.

[0002]

2. Description of the Related Art As a conventional technique, as shown in FIG. 2, for example, when measuring instruments having different installation locations exist in the same business, a logic unit and an input / output unit are connected by a bus, and are separated from each other. Therefore, a plurality of telemeter slave stations are installed, and the measurement data is transmitted to the telemeter master station by using the communication lines 12 as many as the telemeter slave stations.

[0003]

Therefore, when collecting data of the same business office in the telemeter system, a plurality of telemeter slave station devices are required, and hardware costs when the system is introduced, running costs for communication lines, There is a problem that the inspection cost of the telemeter slave station device increases. Further, the telemeter master station device needs a function of editing collected data from different telemeter slave station devices in the same business establishment as measurement data in the same business establishment. An object of the present invention is to solve the above-mentioned problem by reducing the number of telemeter slave station devices, and to shorten the data collection time of all the telemeter slave station devices.

[0004]

According to the present invention, in order to achieve the above object, the connection between the input / output section 3 and the logic section 2 of the telemeter slave station apparatus 1 is made by a communication system, and only the input / output section 3 is a measuring instrument. It is possible to install it in the vicinity of

[0005]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
This will be described below. In FIG. 1, a telemeter slave station device 1
Is a logical unit 2 composed of an operation unit 4, a line control unit 5, an input / output control unit 6, and a line termination device 7, an input / output aggregation unit 8,
The input / output unit 3 includes a measurement input unit 9, a monitoring input unit 10, and a control output unit 11. The logic unit 2 controls the function as a telemeter slave station device.
Is a part for connecting the measuring device according to the interface specification of the measuring device. The logic unit 2 makes a data request to the input / output unit 3 at the measurement time. Upon receiving the data request, the input / output aggregation unit 8 of the input / output unit 3 reads the data of the measurement input unit 9 and the monitoring input unit 10 and transmits the data to the input / output control unit of the logic unit 2.

In the prior art, since the logic unit 2 and the input / output unit 3 were connected by a bus, it was necessary to house both in the same device. However, by using this as a communication system of a predetermined protocol, Both can be separated and installed at different locations. Here, the communication means between the logic unit 2 and the input / output unit 3 includes a LAN (tree type, loop type, bus type).
Alternatively, any one of serial transmission (RS-232C, RS-422) can be used. FIG. 3 shows a configuration example of a telemeter system using the slave station device of the present invention.

[0007]

According to the present invention, for example, different measurement data in the same business establishment, such as measurement data in the same business establishment including the first reactor and the second reactor in the power plant, or data on air source and water quality. Measurement data at a point can be collected by one telemeter slave station device and transmitted collectively to the telemeter master station device, so that the number of slave stations as a telemeter system is reduced and measurement data similar to the conventional one is obtained. There is an effect that can be. In addition, by reducing the number of telemeter slave station devices, it is possible to construct a system with excellent economic efficiency such as a reduction in hardware costs and a reduction in line running costs. Further, the telemeter master station collectively collects measurement data of the same office, thereby shortening the data collection time and simplifying the editing of the same office data.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of a telemeter slave station device of the present invention.

FIG. 2 is a diagram showing an example of a conventional telemeter system.

FIG. 3 is a diagram showing an example of a telemeter system using the telemeter slave station device of the present invention.

[Explanation of symbols]

1: Telemeter slave station device 2: Logic unit
3: Input / output unit, 6: Input / output control unit, 8: Input / output aggregation unit, 12: Communication line, 13: Telemeter master station device.

Claims (3)

[Claims] 1. A measurement input section for taking in a measurement data signal output from a measuring instrument as voltage or current, and a monitoring input for taking in a measuring instrument status signal outputted from the measuring instrument at a non-voltage contact or an open collector. An input / output unit composed of a unit and a control output unit for outputting a control signal to the measuring device at a non-voltage contact is connected to a logic unit composed of an arithmetic unit and a communication control unit by remote communication. Thus, a single telemeter slave station device can be connected to a plurality of measuring instruments at different installation locations in the same premises. 2. The telemeter slave station device according to claim 1, wherein the input / output unit and the logic unit are connected by a loop-type line so that a measuring instrument can be connected in a wide range. . 3. The telemetry slave station device according to claim 1, wherein the input / output unit and the logic unit are communicated by a predetermined communication method and connected to separate the input / output unit and the logic unit. A telemeter slave station device comprising: